Skip to main content
Schneider Electric RM4TG20

Schneider Electric RM4TG20

MPNRM4TG20
Active

PHASE FAILURE RELAY|SQD RM4TG20 PHASE FAILURE RELAY

$85.34Ref. price · indicative, final on quote
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

RM4TG20 key specifications
ParameterValue
TypeControl relay
Time delay typeWithout
Range of productHarmony Relay
Product or component typeIndustrial measurement and control relays
Contacts type and composition2 C/O
Switching voltage250 V AC
Dielectric test voltage2.5 kV
Maximum switching voltage440 V AC
Voltage500 V IEC
[Ie] rated operational current2 A 158 °F (70 °C) 24 V DC-13 IEC 60947-5-1/1991 2 A 158 °F (70 °C) 24 V DC-13 VDE 0660 3 A 158 °F (70 °C) 115 V AC-15 IEC 60947-5-1/1991 3 A 158 °F (70 °C) 115 V AC-15 VDE 0660 3 A 158 °F (70 °C) 24 V AC-15 IEC 60947-5-1/1991 3 A 158 °F (70 °C) 24 V AC-15 VDE 0660 3 A 158 °F (70 °C) 250 V AC-15 IEC 60947-5-1/1991 3 A 158 °F (70 °C) 250 V AC-15 VDE 0660 0.1 A 158 °F (70 °C) 250 V DC-13 IEC 60947-5-1/1991 0.1 A 158 °F (70 °C) 250 V DC-13 VDE 0660 0.3 A 158 °F (70 °C) 115 V DC-13 IEC 60947-5-1/1991 0.3 A 158 °F (70 °C) 115 V DC-13 VDE 0660
[Ith] conventional free air thermal current8 A
Delay at power up650 ms

All specifications

RM4TG20 additional specifications
ParameterValue
Supply frequency50/60 Hz +/- 5 %
Poles description3P
IP degree of protectionIP20 IEC 60529 terminals) IP50 IEC 60529 casing)
Number of cables2
Connections - terminalsScrew terminals, 2 x 1.5 mm²flexible with cable end Screw terminals, 2 x 2.5 mm²flexible without cable end
Terminals description ISO n°1(L1-L2-L3)CO (15-16-18)OC (25-26-28)OC ALT
Terminals description ISO n°2(11-12-14)OC ALT (L1-L2-L3)CO (21-22-24)OC
Pollution degree3 IEC 60664-1
Shock resistance15 gn 11 ms IEC 60068-2-27
Relative humidity15...85 % 3K3 IEC 60721-3-3
Vibration resistance0.35 ms (f= 10...55 Hz) conforming to IEC 60068-2-6
Non-dissipating shock wave4.8 kV
Depth3.1 in (80 mm)
Width0.9 in (22.5 mm)
Height3.07 in (78 mm)
Contacts material90/10 silver nickel contacts
Mechanical durability30000000 cycles
StandardsEN/IEC 60255-6
MarkingCE
Category22376-RELAYS-MEASUREMENT(RM4)
Directives73/23/EEC - low voltage directive 89/336/EEC - electromagnetic compatibility
Relay nameRM4-T
9 mm pitches2.5
Output contacts2 C/O
Tightening torque5.3...9.7 lbf.in (0.6...1.1 N.m)
Operating positionAny position without derating
Output relay stateTripped, fault present
Overvoltage categoryIII conforming to IEC 60664-1
Maximum measuring cycle80 ms
Switching capacity in10 mA 12 V
Relay monitored parametersPhase failure detection Phase sequence
Product specific applicationFor 3-phase supply
Electromagnetic compatibilityElectrostatic discharge - test level: 6 kV level 3 (contact discharge) conforming to IEC 61000-4-2 Electrostatic discharge - test level: 8 kV level 3 (air discharge) conforming to IEC 61000-4-2 Resistance to electrostatic discharge - test level: 6 kV (contact) conforming to IEC 61000-4-2 level 3 Resistance to electrostatic discharge - test level: 8 kV (air) conforming to IEC 61000-4-2 level 3
Resistance to fast transients2 kV IEC 61000-4-4 level 3
Disturbance radiated (conducted)CISPR 11 group 1 - class A CISPR 22 - class A
Setting accuracy of time delay10 P
Ambient air temperature for storage-40...185 °F (-40...85 °C)
Resistance to electromagnetic fields9.1 V/m (10 V/m) IEC 61000-4-3 level 3
Ambient air temperature for operation-4...149 °F (-20...65 °C)
Resistance to electrostatic discharge6 kV contact IEC 61000-4-2 level 3 8 kV air IEC 61000-4-2 level 3
MPN
RM4TG20